/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package org.jboss.netty.util;

/**
 * Represents an object which contains another object that needs to be taken
 * into account by {@link ObjectSizeEstimator} for more accurate object size
 * estimation.
 */
public interface EstimatableObjectWrapper {

    /**
     * Returns the underlying object that needs to be taken into account
     * by {@link ObjectSizeEstimator} for more accurate object size estimation.
     */
    Object unwrap();
}
